Subscriptions are handled by Apple. To manage, change or cancel your plan, open Settings → your name → Subscriptions → Pick on your iPhone, or visit apps.apple.com/account/subscriptions. If you cancel during the free trial, you won't be charged.
Already subscribed but the app doesn't recognise it (new phone, reinstall)? Open Pick and go to Settings → Restore purchases. Make sure you're signed in with the same Apple Account you used to subscribe.
Payments are processed by Apple, so refunds are requested directly from them at reportaproblem.apple.com.
Pick has no accounts — your plan and preferences live on your iPhone, and we only receive anonymous usage analytics. To erase everything, use Settings → Delete my data inside the app, or simply delete the app. See the privacy policy for details.
The FAQ on the main page covers accounts, supermarket prices, allergies and diets, the free trial and device requirements.